<listitem>
<!--
+Author: Tom Lane <tgl@sss.pgh.pa.us>
+Branch: master [5d28c9bd7] 2018-11-06 18:33:28 -0500
+Branch: REL_11_STABLE [05f84605d] 2018-11-06 18:33:33 -0500
+-->
+ <para>
+ Disable <varname>recheck_on_update</varname> optimization (Tom Lane)
+ </para>
+
+ <para>
+ This new-in-v11 feature turns out not to have been ready for prime
+ time. Disable it until something can be done about it.
+ </para>
+ </listitem>
+
+ <listitem>
+<!--
Author: Michael Paquier <michael@paquier.xyz>
Branch: master [dc3e436b1] 2018-11-05 11:04:02 +0900
Branch: REL_11_STABLE [7c222d5e5] 2018-11-05 11:04:14 +0900
<listitem>
<!--
Author: Tom Lane <tgl@sss.pgh.pa.us>
+Branch: master [003c68a3b] 2018-11-06 13:25:24 -0500
+Branch: REL_11_STABLE [1f28ec6be] 2018-11-06 13:25:24 -0500
+Branch: REL_10_STABLE [b2e754c14] 2018-11-06 13:25:24 -0500
+-->
+ <para>
+ Rename red-black tree support functions to use <literal>rbt</literal>
+ prefix not <literal>rb</literal> prefix (Tom Lane)
+ </para>
+
+ <para>
+ This avoids name collisions with Ruby functions, which broke
+ PL/Ruby. It's hoped that there are no other affected extensions.
+ </para>
+ </listitem>
+
+ <listitem>
+<!--
+Author: Tom Lane <tgl@sss.pgh.pa.us>
Branch: master [1440c461f] 2018-11-02 18:54:00 -0400
Branch: REL_11_STABLE [df1d749a7] 2018-11-02 18:54:00 -0400
Branch: REL_10_STABLE [229a5c8ad] 2018-11-02 18:54:00 -0400